摘要
对前人得到的性能良好的规则LDPC码和不规则LDPC码进行仿真分析,分别得到性能曲线。结合规则码和不规则码的特点,并从译码BP算法、校验矩阵结构、环(circle)、误码平台(errorfloor)及可实现性等角度进行比较,分析了导致性能差异的原因,进而对构造在光通信系统中具有实用价值的LDPC码提出了看法。
From the aspects of BP algorithm, the structure of H matrix, circle, error floor, practical realize of LDPC, The paper Analyzes and compares the characteristics of regular LDPC and irregular LDPC, then researches the reasons of the differences of regular LDPC and irregular LDPC. At last, the paper makes some suggestions as to the construction of excellent LDPC for optical communication system.
出处
《光通信技术》
CSCD
北大核心
2005年第5期59-61,共3页
Optical Communication Technology
